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Merck
CN

H9882

4-羟基苯肼

powder, ≥97%

别名:

4-羟基苯甲酰肼, p-羟基苯甲酸酰肼

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关于此项目

线性分子式:
HOC6H4CONHNH2
化学文摘社编号:
分子量:
152.15
NACRES:
NA.32
PubChem Substance ID:
UNSPSC Code:
12352204
EC Number:
226-326-5
MDL number:
Beilstein/REAXYS Number:
473052
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产品名称

4-羟基苯肼, ≥97%

InChI key

ZMZGIVVRBMFZSG-UHFFFAOYSA-N

InChI

1S/C7H8N2O2/c8-9-7(11)5-1-3-6(10)4-2-5/h1-4,10H,8H2,(H,9,11)

SMILES string

NNC(=O)c1ccc(O)cc1

biological source

synthetic

assay

≥97%

form

powder

mp

264-266 °C (dec.) (lit.)

solubility

acetic acid: water (1:1): 25 mg/mL, clear, colorless to faintly yellow

fluorescence

λex 360 nm; λem 425 nm (reacted with 5-hydroxymethyl-furaldehydezinc acetate)

Quality Level

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Application

4-羟基苯甲酰肼可用于:
  • 测定淀粉消化中麦芽糖的浓度
  • 分析含食物水解产物的果聚糖中的糖
  • 比色测定,预估加工饲料中的还原糖

Biochem/physiol Actions

4-羟基苯甲酰肼(PAHBAH)用于分析α-淀粉酶和葡糖淀粉酶活性。基于PAHBAH的分析方法可非特异性地比色测定(415nm)样品中存在的游离还原糖基。

pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

存储类别

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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Dongling Qiao et al.
Carbohydrate polymers, 144, 271-281 (2016-04-17)
Combined analytical techniques were used to explore the effects of alkali treatment on the multi-scale structure and digestion behavior of starches with different amylose/amylopectin ratios. Alkali treatment disrupted the amorphous matrix, and partial lamellae and crystallites, which weakened starch molecular
Glucoamylase (exo-1, 4-alpha-d-glucan glucanohydrolase, EC 3.2. 1.3) is the major starch-degrading enzyme secreted by the phytopathogenic fungus Colletotrichum gloeosporioides
Krause DR, et al
Microbiology, 137(10), 2463-2468 (1991)
Efficacy of reducing sugar and phenol-sulfuric acid assays for analysis of soluble carbohydrates in feedstuffs
Hall, Mary Beth
Anim. Feed Sci. Technol., 185(1-2), 94-100 (2013)
Measurement of total fructan in foods by enzymatic/spectrophotometric method: collaborative study
McCleary BV, et al.
Journal of AOAC (Association of Official Analytical Chemists) International, 83(2), 356-364 (2000)
Extrusion induced low-order starch matrices: Enzymic hydrolysis and structure
Zhang B, et al.
Carbohydrate Polymers, 134(10), 485-496 (2015)

实验方案

Enzymatic Assay of Invertase

在测定转化酶活性时,使用了一种在410nm处的分光光度终点反应法进行测定。在55 ºC、pH 4.5条件下,一单位的转化酶每分钟可将1.0 μmole的蔗糖水解为转化糖。

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